William strait



I UNITED STATES PATENT EEIcE.

WILLIAM STRAIT, on ELMIRA, NEW YORK, AssIGIvoR TO GELESTIA L.

' STRAIT, OF SAME PLACE.

SULKY-PLOW.

SPECIFICATION forming part of Letters Patent No. 275,090, dated April 3, 1883.

Application filed December 23, 1882. (Model.)

in the county of Ghemung and State of New York, have invented certain new and useful Improvements in Sulky-Plows; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to reversible plows; and it consists in the devices for mounting a right-and-left-hand plow on a rotating shaft of a wheel-plow frame, and in the means for operating and elevating said plows.

It also consists in mounting the plows upon a shaft having a vertical oscillation by means of a rocking bearing placed centrally upon the shaft,and in details ofconstruction, all as hereinafter described.

In the accompanying drawings, Figure l is a top view of my plow. Fig. 2 is a side view of the same. Fig. 3 is a longitudinal vertical section. Fig. 4 isa transverse vertical section.

The frame 0, which carries the principal parts, is formed with side grooves to adapt it to slide up and down upon projecting guides upon the inner sides of the arched axle. On its top front end this frame is provided with side flanges or lips, U, adapted to receive and secure the tongue. and by means of a bolt the tongue may be set at any desired elevation. The rear end of frame 0 is enlarged somewhat, and made halfcylindrical in form, the hollow part being hencath. This hollow or recess is thus fitted to receive and protect the rotating shaft which carries the plows. This shaft is placed longitudinally under the frame, and is provided centrally with a rocking bearing, the trunnions of which are journaledin cars which depend from the cylindrical rear part of the frame. This rocking bearing is for the purpose of allowing a rocking or oscillating movement to the shaft. The front end of the shaft rests in the slotted guide H, secured to the front under side of the frame, the slot in which limits the vibration of the shaft. The draft-plate I is keyed upon the front end of the shaft. It

The front lip is slotted,

has an upward arm that plays in a vertical slot in the frame and a downward arm with perforations for the adjustment of the draft.

The shaft and plows are rotated by means of the hand-lever K, Fig. 3, provided with a dog which catches in a series of notches in the rear end of the frame 0, so as to lock either plow in working position or hold both free from the ground when desired. A coiled spring, L, Fig. 3, holds the leverK locked until moved by the hand of the driver. The tongue S is pivoted or hinged to the frame by means of a pivot, T, and has a bolt passing through slot V in lip or flange U, by which means the tongue may be raised or lowered in relation to the frame.

Attached to the arch of the axle is a rockshaft, N, journaled in lugs on the arch. On this rock-shaft is fixed an oscillatinglever, O, the forward end of which is pivotedto link P, attached to the frame. The rear end of lever 0 passes loosely through a hole in the vertically-sliding seat-bar Q. The rock-shaft is also provided with a hand-lever, M, having a dog which catches in a series of notches in the lug h, Fig. 4; and a coiled spring, W, holds the lever M locked by gently pressing the rock-shaft to theleft, as shown in Fig. 4.

Having described my invention, what I claim is 1. The oscillating plow-shaft D, with rightand-left-hand plows, having arockingbearing whereby the shaft is allowed to oscillate vertically in relation to the frame, substantially as set forth.

2. The rotatingplow-shaftD, having arocking bearing, whereby the shaft is allowed to rotate and to oscillate vertically in relation to 5. In combination with the vertically-oscillating plow-shaft 1), the adjustable frame 0, and the arch of the axle formed with vertical guides, substantially as described.

6. The combination, with the frame 0, verticallyadjustable under the arch of theaxle and having vertical flange or lip T and slotted lip U, of the tongue S, substantially as and for the purposes set forth.

7. The combination of the sliding seat-bar 10 Q, oscillating lever O, rock-shaft N, lever M, link P, and frame 0, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses. I

\VILLIAM STRAIT.

Witnesses:

DANIEL BREED, E. B. SMITH. 

